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import unittest
from lmi.scripts.common.util import FilteredDict
class FilteredDictTest(unittest.TestCase):
def test_empty(self):
d = FilteredDict(tuple(), {})
self.assertEqual(0, len(d))
self.assertNotIn('key', d)
self.assertEqual(0, len(d.keys()))
self.assertEqual(0, len(d.values()))
self.assertEqual(0, len(d.items()))
self.assertRaises(KeyError, d.__getitem__, 'key')
self.assertRaises(KeyError, d.__setitem__, 'key', 'value')
def test_empty_keys(self):
d = FilteredDict(tuple(), {'a': 1})
self.assertEqual(0, len(d))
self.assertNotIn('a', d)
self.assertEqual(0, len(d.keys()))
self.assertEqual(0, len(d.values()))
self.assertEqual(0, len(d.items()))
self.assertRaises(KeyError, d.__getitem__, 'a')
self.assertRaises(KeyError, d.__setitem__, 'a', 2)
def test_empty_origin(self):
d = FilteredDict(tuple('a'), {})
self.assertEqual(0, len(d))
self.assertNotIn('a', d)
self.assertEqual(0, len(d.keys()))
self.assertEqual(0, len(d.values()))
self.assertEqual(0, len(d.items()))
self.assertRaises(KeyError, d.__getitem__, 'a')
d['a'] = 1
self.assertEqual(1, len(d))
self.assertEqual(1, d['a'])
self.assertIn('a', d)
self.assertEqual(['a',], d.keys())
self.assertEqual([1], d.values())
self.assertEqual([('a', 1)], d.items())
di = d.iteritems()
self.assertEqual(('a', 1), di.next())
self.assertRaises(StopIteration, di.next)
d['a'] = 2
self.assertEqual(2, d['a'])
del d['a']
self.assertEqual(0, len(d))
def test_filled(self):
original = {'b': 2, 'c': 3}
d = FilteredDict(('a', 'b'), original)
self.assertEqual(1, len(d))
self.assertNotIn('a', d)
self.assertIn('b', d)
self.assertNotIn('c', d)
self.assertEqual(1, len(d.keys()))
self.assertEqual(1, len(d.values()))
self.assertEqual(1, len(d.items()))
self.assertRaises(KeyError, d.__getitem__, 'a')
self.assertEqual(2, d['b'])
di = d.iteritems()
self.assertEqual(('b', 2), di.next())
self.assertRaises(StopIteration, di.next)
self.assertEqual(2, d.pop('b'))
self.assertEqual(0, len(d))
self.assertEqual({'c': 3}, original)
d.update({'a': 1, 'b': 4})
self.assertEqual({'a': 1, 'b': 4, 'c': 3}, original)
self.assertEqual(2, len(d))
self.assertEqual(set((('a', 1), ('b', 4))), set(d.items()))
d.clear()
self.assertEqual(0, len(d))
self.assertEqual({'c': 3}, original)
self.assertRaises(KeyError, d.__setitem__, 'c', 5)
self.assertRaises(KeyError, d.update, {'b': 2, 'c': 3})
if __name__ == '__main__':
unittest.main()
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